Clearing mechanism



Feb. 12, 1924;

msm

Patented Feb. 12, 1924.

TES

RICHARD `LESTIEIR WILCOX, 0F WATER-BURY, CONNECTICUT, ASSIGNOR TO THE WATERBUBY FARBEL FOUNDRY AND MACHINE NECTICUT, A CORPORATION OF CONNECTICUT.

COMPANY, 0F WATERBURY, CON- CLEARING MECHANISM.

Application led February 6, 1922. Serial No. 534,542.

To all whom t may concern:

Be it known that I, RICHARD Lnsrnn WIL- cox, a citizen of the United States, residing at l/Vaterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Clearing Mechanisms, of which the following is a specification, reference being had therein to theV accompanying drawings.

This invention relates to new and improved clearing mechanism, referring more particularly to mechanisms for clearing the entrance end of a chute leading from a hopper, by stripping fherefrom all blanks not correctly positioned therein. a

It is the object of this inventiomamon other things, to provide a device for this purpose, wherein only readily substituted portions thereof require changing to accommodate blanks of varying sizes, the primary portions remaining engaged and unaltered.

rlhe improvements in the details and arrangement of parts will be apparent from an inspection of the accompanying drawings in connection with the description hereinafter contained and wherein a preferred embodiment of the invention is disclosed for the purpose of imparting an understandin thereof.

efe'rring to the drawings in which like characters of reference designate like'fparts in the several figures;

Figure 1 is an elevation of my improved device with that portion of the hopper and discharge chute immediately adjacent thereto;

Figure 2 is a plan view thereof;

Figure 3 is a sectional view, taken generally upon line 3-3 of Figure 1; and

Figure 4 is an enlarged sectional elevation, taken generally upon line 4.-4- of Figure 1. v

Heretofore clearing mechanisms have usually been arranged for an extremely limited range of sizes of blanks and to accommodate even this narrow eld required substitution which might be termed the primary portions of the mechanism. This demands an almost unlimited supply of parts that are costly to make and are .more or less complicated in their means and method of assembly and therefore not entirely practical, and at the best do not meet the requirements. v g l.

My device may be used in connection with blanks of an almost unlimited range of sizes, etc. by the mere substitution of a member that is of an extremely simple construction and inexpensive to make and the primary parts of the mechanism are not changed or disturbed. n

In the drawings, 10 designates a portion of a hopper which may be of any desired form, 11 the chute plates leading therefrom, as is usual, with an open space 12 therebetween, 13 the cover that isheld in any preferred manner above the said opening 12 with an open space between it and the plates 11, sufficient to permit the head of the blank y14 to pass thereunder as shown in Figure 4.

All of the parts above described are of a well known form and structure.

' Fixed in a portion ofthe hopper 10'is a stud 15 upon which is rotatably mounted a sheave pulley 16 having a cam 17 upon one end of the hub thereof. A. nut 18 and collar 19 prevent axial Amovement of the sheave pulley upon the stud 15.

On the shaft 20 is a rock lever 21 having a cam arm 22 forming part thereof upon the outerend of which ris a lug 23 which is engaged by the cam 17 duringa portion of its rotation, and anarm 24 which projects toward the chute plates 11. Near the lower inner endl of the arm 24 a stripper `plate 25 is secured by screws 26 or other similar means. In the end of this latter plate is a slot 27, thatl is slightly larger than the diameter of the head of the'blank 14 and projecting therefrom is a second slot 28 of sufficient size to pass freely over the cover 13.

In the arm 24 is a slot 29 which registers with the slot 28, in the stripper plate, its length being sufficient to accommodate a slot 28 of the maximum length.

The yrock lever 21 is moved in one direction by the cam 17 and as the high point 38 thereof approaches the lug V23 on the cam arm 22, the rock lever 21 swings so that thestripper plate is moved toward` the right in Figure 1, that is, away from the upper or inner end of the ycover 13. After said high point has passed under the lug 23, the rock lever is moved in the reverse`d1rection by a plungerl30 actuated by the spring 331 and the stripper plate 25 sweeps over the topof the chute plates 11, snapping or v kicking all blanks'oif the top thereof, which are not in proper position thereon. jrIhat is, all blanks which are not so arranged relatively to the chute that the slianks thereof are in .the open space 12 between the chute plates 11 and the head resting upon the tops thereof, substantially shown in Figure/f4, Which blanks when so aligned pass tliiough the slot 27 in the plate 25 and travel down the chute to the dischai'geypoint.

To relieve the shock upon the rock lever 21I and alsoto eliminate the noise or click thereof' therephas been inseifted a stud 32Min the hopper 10 ,which projects into an1 fopening in 'the cani ai'ni`22 ,against ivli'ieh strikes `a vresilientplugl 34 in the cam arm when thefr latter is `in lits down position. The' position of the stud and plugjbeing such, that the lug 28 when in its down position does notfcon'tact Witlig'the'lovvest point oftheperiph'erv of the camV 17, @as shown in IigureL* The driver vvill function correctly however eveii if the lug 23 ldid' rbring up against the cam 17. `The 'plate 25`niay` be used for blanks that vary slightly inv their dimeiisions,""but is readily replacedby :otherplates having slots therein of th'evproper sizey to aceommodate blanks whose dimensions vary greatly therefrom. i l guide plate 35 of the usual form, with an angular face 36 thereoii,"'is connected Witlitl'ie hopper to guide the blanks toward the top ofthe chute plates l1 when the same are thrown against tlie'side plate 37.

kYV ith this coiistru'ction'all of the primary portions of theinechaiiism areffnotchanged lor altered, tliewide :range .of sifzesof blanks being 'accommodated by merely substituting ,a plate 25 slotted/"to suit, thatis inexpensive vto make and requires` lijstje-l., Anv Skill, tO, aS semble.' j j The sudden snap or kick given to the improperly aligned blanks bvthe'plate 25 is very effectual in keeping the entrance to the discharge chute clear and thus prevents clogging thereof, the blanks reeeiving a sufficient blon7 to generally return them tothe ho` er;

l `nor changes and alterations may be made Within myv invention, aside from those herein suggested, and Ir Would' therefore have it understood that Ido not limit myself tothe exact "construction herein shown and described, but, claim all that falls fairly within the spirit' and scope of 'the' appended claims. i

lWhat I claim as new by Letters Patent, isz' 1; Inv combination with a feed chute, of means for ystripping therefrom all blanks lwhich are not in regular 'processional line therein, 'comprising rock member pivotall y mounted upon a jiXed'partQa member connected and movable therewith 'Shaving a reand desire to secure "eess therein' slightly larger 'it en.: the head.

of the blank, and means for actuating said rock member whereby 'the movement of the end thereof that is adjacent to the blanks is unrestrainedwhen traveling against the path of movement of the blanks and controlled While moving` inthe opposite direction.

2. In combination with a feed chute, of means for stripping therefrom all blanks which are not in regular processional line therein, comprising a rock member pivotally mounted upon a fixed part, means for actuating. the same `whereby the movement of the endlthereof lthat is adjacent to the `blanks is unrestrained when traveling againstvthe path of movement of the blanks and controlled While'moviiig in the oppositedirecti0n,and any element connected and movable with said rock member that projects over the head of the blanksy and during its movement swings over the'top of said chute. v3. In 'combination with a feed chute, of means for `stripping therefrom all blanks which are notl yin regular proeessional line thereimcomprising a rock member pivotally 'mounted up'on'af fixed part,'means for actuatfi'ngthe same whereby the movement of the fend thereof that is adjacent to the blanks is unrestrained Awhen traveling against the path of movement of the blanks and rcontrolled While moving in the opposite direction,` anelement connected and movable with syaidi'ock member that projects over the head ofthe blanks and during its movement swings over the top of said chute, positive vmeans for actuating said Vrock member iii 'one direction, and yielding means for actuat- 'iiig the/same in the opposite direction.

*11. In' combination' With a feed chute, of means for stripping therefrom all blanks 'which are not in regular processional line therein, 'comprising a rock member pivotally [mounted upon a fixed part, means for actuating the same y*whereby the movement .of the endfthereofthat is adjacentto the blanks -is unrestrained when Vtraveling against the path of `movement of the blanks and controlled While moving inthe opposite direction, an element connected and movable With said rock member thatl projects over thehead ofthe blanks and during its movement swings over the top of said chute, positive means for actuating said rock member when the said element connected therewith is moving over said chute iii a path substantially parallel to the direction of movement of the blank therein, and yielding means for moving the same in the opposite direction.

`5. In combination With afeed chute, of .a cover therefor, means for stripping from said kfeed fehute all blanks that arel not `in isters With said cover, a plate slotted so as to pass over said cover and the head of the blanks When in said regular processional line, and means for actuating said rock member so that said plate Will swing over the top of said chute.

6. In combination With a feed chute, of means for stripping therefrom all blanks which are not in regular processional line therein, comprising a rock member pivota-lly mounted upon a fixed part, an element connected and movable with said rock member that projects over the head of the blanks and during its movement swings over the top of said chute, and a cam for actuating said rock member when the end thereof adjacent to the blanks is moving with the blanks.

7. In combination With a feed chute, of means for stripping therefrom all blanks which are not in regular processional line therein, comprising a rock member pivotally mounted upon a fixed part, an element connected and movable With said rock member that projects over the head of the blanks and during its movement swings over the top of said chute, and a cam actuating said rock member when the end thereof adjacent to the blanks is moving with the blanks, and yielding means for actuating it in the opposite direction.

8. In combination With a 'feed chute, of means for stripping therefrom all blanks which are not in regular processional line therein, comprising a rock member pivotally mounted upon a fixed part, an element connected and movable With said rock member that projects over the head of the blanks and during its movement swings over the top of said chute, a cam for Lactuating said rock member in one direction, and a spring actuated plunger for actuating the same in the opposite direction. n

9. In combination with a feed chute, of

means for stripping therefrom all blanks Which are not 1n regular processional line therein, comprising a rock member, an element separably connected With said rock member that projects over the head of the blanks and during its movement swings over the top of said chute, a cam for actuating said rock member in one direction, and a spring actuated plunger for actuating the same in the opposite direction, and means for limiting the movement of said rock member in one direction so as to hold it out of engagement With said cam during a portion of the movement thereof.

10. In combination with a feed chute, of means for stripping therefrom all blanks Which are not in regular processional line therein, comprising a rock member pivotally mounted upon a fixed part having a cam arm thereon, a second arm thereon, a member connected with thesecond arm and movable therewith, said member being slotted so as to pass over the head of the blanks in said chute, a cam during its rotation having contact With said cam arm, and a plunger for moving said cam arm toward said cam.

`11. In combination with a feed chute, of means for stripping therefrom all blanks Which are not in regular processional line therein, comprising a rock member having a cam arm thereon, a second arm thereon, a member separably secured to the second arm and slotted so as to pass over the head of the blanks in said chute, a cam during its rotation having contact With said cam arm, a plunger for moving said cam arm toward said cam, and means for limiting the movement of said rock member when actuated by said plunger.

In testimony whereof, I have hereunto aixed my signature.

RICHARD LESTER WILCOX. 

